Journal article

Cardiac Depression Scale: Mokken scaling in heart failure patients

Chantal F Ski, David R Thompson, David L Hare, Andrew G Stewart, Roger Watson

HEALTH AND QUALITY OF LIFE OUTCOMES | BMC | Published : 2012

Abstract

BACKGROUND: There is a high prevalence of depression in patients with heart failure (HF) that is associated with worsening prognosis. The value of using a reliable and valid instrument to measure depression in this population is therefore essential. We validated the Cardiac Depression Scale (CDS) in heart failure patients using a model of ordinal unidimensional measurement known as Mokken scaling. FINDINGS: We administered in face-to-face interviews the CDS to 603 patients with HF. Data were analysed using Mokken scale analysis. Items of the CDS formed a statistically significant unidimensional Mokken scale of low strength (H0.8). CONCLUSIONS: The CDS has a hierarchy of items which can be in..

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